Can puncturing device



Feb, 13, 1940. .M N.CH 2,190,275

CAN PUNCTURING DEVICE Filed April 21, 1938 fiweni'or Patented Feb 13, 1 940 UNITED STATES PATENT orFrcE CAN PUNCTURING DEVICE Bernard Simunich, Chicago, Ill. Application April 21, 1938, Serial No. 203,377

Claims. (01. 30- 16) My invention relates to improvements in devices for puncturing holes in cans-containing liquid, especially milk, and the object of my improvement is, in one continuous operation, to

puncture first one and then the second of two holes in diametrically opposite points on the'top of the can, the puncturing action of the device being integral with its clamping action A feature of this device to be noted, is that its design limits its use to the size can for which it is made to operate; for example, two milk cans in use today have approximate circumferences of 9 ,4 and Qf' respectively. This device designed for one of the two, will not operate on the other.

A perspective view of the, device is shown in Fig. i of the drawing.

Fig. 2 shows the device ready to operate. Lever 4 acts through bearings 2 and 3 to bring clamps 4 and 5 in contact with can at the instant wedges ii and 1 are about to meet. As the action of lever l continues; clamps l and 5 exert a continuous and increasing squeezing action on the sides of the can while wedges 6 and ,l are sliding over each other to cause point 8 to puncture can, Fig. Thereafter point 8 reinforces the resistance to bending of the side of the can above point 4.

Point 9 is now in position to puncture. As lever l actioncontinues, its action through bearing 2 forces point 9, passing through slot ill, to completc second puncture, Fig. 4.

Clamp t being integral with point 9 swivels in a motion controlled by point 9. of clamp 5 and point 8.

In a device for puncturing two holes in a can containing liquid, I claim:

This is also true 1.. In a device for puncturing a sealed can at two diametrically opposed points on the top thereof, a pair of opposed side clamps, an arm extending laterally from each of said clamps, a prong.

extending downwardly from each of said arms adjacent their free ends, a lever pivoted to each ofvsaid arms at spaced apart points thereon, and cooperable cam means' extending from each of and between said arms, the said lever being adapted to draw saidclamps toward each other and to simultaneously cause said cam means to co-act.

and to depress one of said prongaand to thereafter by. continued leverage action successively depress the second prong. i

2. In a device for puncturing'asealed can of the class described, a pair of superimposed arms adapted to extend transversely of the can top, each ofsaid arms at one end terminating in a clawfadapted to pivotally engage the sides of the can between them at diametrically opposed points, and at the other end ina prong extending downwardly towards the can top, a slotted opening in the lowermost arm for permitting lateral and downward movement therethrough of the prong extending fromtheuppermcst arm, a lever pivoted at one end to said lowermost arm adjacent said slot and pivoted at an intermediate point to said uppermost arm adjacent its prong, and a wedge-like cam member extending upwardly of said lowermost arm adjacent its prong adapted to abut against a cam-likeshoulder extending down wardly from said uppermost arm the said lever being adapted to cause said claws to clamp the sides of the can and to simultaneously bring about cooperation of said cams and to thereby depress the prong adjacent to them into the top of the lean; and to thereafter depress the second prong downwardly into the top of the can at a diametrically opposed point.

3. In a device for puncturing the top of a sealed can at two diametrically opposed points, clamp means for embracing the canisides, a pair of su perimposed arms projecting laterally from said clamp means adapted to extend laterally over the BERNARD SIMUNICH. 

